charlie: steve jobs. obviously he was the once in a generation visionary in terms of repeatedly producing products that were beautiful intuitive and loved. >> charlie: what do you make of the fall in their stock price? >> i think my guess is tim cook and that team are not worrying about the short term stock price. they're building for the longer term and stocks go up and down. if you get too focused on that you get distracted. >> charlie: larry page. reated a great company called google who is going through their first real challenges in terms of small disruption around the edges. >> charlie: what is that disruption? >> well, the disvupg is how search is being used. it's a different metaphor. facebook could potentially start searching. disruption is never head on. it's always around the edges. what that forces us to do is a large technology company is to reimagine, reinvent how we operate. >> charlie: mark zucker burg. a brilliant visionary who has done a phenomenal job with facebook. >> charlie: did you